1828686

Information

• Patent Grant
• 1828686

• References
• Source

• Patent Number

  1,828,686

• Date Filed

  Not available

• Date Issued

  Tuesday, October 20, 1931
  93 years ago

• CPC

  • G04B37/055 - with shock damping means including the winding stem

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 417 - Pumps
  • 968 - Horology